Review of Ecological Engineering Solutions for Rural Non-Point Source Water Pollution Control in Hubei Province, China

Wu, Min; Tang, Xianqiang; Li, Qingyun; Yang, Wenjun; Feng, Jianjun; Tang, Minzhe; Scholz, Miklas

doi:10.1007/s11270-013-1561-x

Cited by 68 publications

(23 citation statements)

References 52 publications

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“…Therefore, understanding the spread of contamination in waterways is of high importance. Within the environmental context, it has been observed that ecological engineering resources, as the Sustainable Drainage Systems, are capable of mitigating pollution and of providing water purification (Wu et al, 2013). Integration of natural drainage systems, such as constructed wetlands (CWs), vegetated ponds, swamps, permeable pavements and more, are used to manage flood incidents and to treat contamination in the source (Scholz et al 2007;Woods-Ballard et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Hydraulic and Design Parameters in Full-Scale Constructed Wetlands and Treatment Units: Six Case Studies

Ioannidou

Pearson

2018

Environ. Process.

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The efficiency of pond and constructed wetland (CW) treatment systems, is influenced by the internal hydrodynamics and mixing interactions between water and aquatic vegetation. In order to contribute to current knowledge of how emergent real vegetation affects solute mixing, and on what the shape and size effects are on the mixing characteristics, an understanding and quantification of those physical processes and interactions was evaluated. This paper presents results from tracer tests conducted during 2015-2016 in six full-scale systems in the UK under different flow regimes, operational depths, shapes and sizes, and in-/outlet configurations. The aim is to quantify the hydraulic performance and mixing characteristics of the treatment units, and to investigate the effect of size and shape on the mixing processes. Relative comparison of outlet configuration, inflow conditions, and internal features between the six different treatment units showed variations in residence times of up to a factor of 3. A key outcome of this study, demonstrated that the width is a more important dimension for the efficiency of the unit compared to the depth. Results underlined the importance of investigating hydrodynamics and physics of flow in full-size units to enhance treatment efficiency and predictions of water quality models.

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Section: Introductionmentioning

confidence: 99%

Hydraulic and Design Parameters in Full-Scale Constructed Wetlands and Treatment Units: Six Case Studies

Ioannidou

Pearson

2018

Environ. Process.

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“…To date, water pollution is one of the most critical environmental issues, with human D r a f t activities adding different types of contaminants (Palma et al, 2010). For example, agricultural practices are altering water resources as a result of the massive use of fertilizers, pesticides and the spread of livestock wastes (Huo et al, 2009;Wu et al, 2013). Also industries release large quantities of heavy metals, organic matters and toxic chemicals to aquatic environments (Islam et al, 2015).…”

Section: Applications Of Afis and Influence Factorsmentioning

confidence: 99%

Artificial floating islands for water quality improvement

et al. 2017

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Artificial floating islands (AFIs) are a variation of wetland treatment systems for water quality improvement. This paper provides a review concerning AFIs in terms of their development, classification, and applications in the removal of nutrients, heavy metals, and chemical oxygen demand on waterways. The role of microorganisms, aquatic plants, and aquatic animals in AFIs for water decontamination and purification was also discussed. Additionally, some key factors influencing the AFIs’ performances were discussed and comparisons between AFIs and constructed wetlands were reviewed. Finally, further perspectives of artificial floating islands were identified to possibly improve their performances. The understanding of the mechanisms in AFIs that drive removal of various contaminants to improve water quality is crucial, and is also highlighted in this paper.

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“…Furthermore, there is great interest in China about the Membrane Controlled Release (MCR) technology used to control NPS Process control techniques: The application of NPS process control techniques has received a great deal of attention in China in recent decades. These techniques include constructed wetlands, riparian vegetation buffers, multi-pond systems, soil and water conservation technologies, hybrid eco-agriculture (a rice-fish-azolla mode, a mulberry-silkworm-fish mode, and other modes with Chinese agroeconomic characteristics), and scientific irrigation methods (including seepage prevention, lining and border check irrigation technologies) [40]. In recent years, research about riparian vegetation buffers has included an extensive range of quantitative studies.…”

Section: Development Of Nps Control Technology and A Control Managemementioning

confidence: 99%

An Overview of China’s Agricultural Non-point Source Issues and the Development of Related Research

Q¹

2014

Hydrol Current Res

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Non-point Source (NPS) pollution has become an important concern in the protection of the aquatic environment and has received increased attention in recent years. In China, NPS pollution control is one of most important issues that need to be addressed to protect the aquatic environment in the next few decades. This paper reviewed and summarized three aspects of current agricultural NPS pollution studies in China: mechanisms, simulation models, and control technologies. This review outlines some shortcomings of previous research and the opportunities for future research. The results of this study indicated that the present research on NPS pollution mechanisms is not adequate. The lack of a database system, the uncertainty of models, and other issues have an effect on model applications. Control technology is still the only technique used for minimizing NPS pollution. For future studies, understanding and absorbing foreign NPS models, modifying related processes, and using related key parameters that are modified using Chinese characteristics are necessary for NPS pollution modeling in China. Furthermore, research on NPS mechanisms and system control technologies at a watershed scale will also be a key issue.

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Review of Ecological Engineering Solutions for Rural Non-Point Source Water Pollution Control in Hubei Province, China

Cited by 68 publications

References 52 publications

Hydraulic and Design Parameters in Full-Scale Constructed Wetlands and Treatment Units: Six Case Studies

Hydraulic and Design Parameters in Full-Scale Constructed Wetlands and Treatment Units: Six Case Studies

Artificial floating islands for water quality improvement

An Overview of China’s Agricultural Non-point Source Issues and the Development of Related Research

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